23068673

Properties

Appears in sequences

• Smallest prime of form 2^n*k + 1.at n=21A035089
• Primes of the form 11*2^k + 1.at n=5A050529
• Minimal 2^n safe-primes: a(n) = 2^n*A051886(n) + 1 (a prime number).at n=21A051900
• a(n) is the least prime p such that p-1 is divisible by 2^n and not by 2^(n+1).at n=21A057775
• Primes of the form 2^r*11^s + 1.at n=15A077499
• a(n) = 11*2^n + 1.at n=21A083683
• Duplicate of A051900.at n=21A084706
• Smallest prime with exactly n consecutive zeros in the longest run of zeros in its binary expansion.at n=20A090587
• a(n) = n-th element of n-th row of triangle shown below.at n=26A115025
• a(n) = 2*a(n-1) - 1 for n>1, a(1)=23.at n=20A122041
• A007318 * A131055.at n=21A131056
• Least prime of the form 1 + p*2^n, where p is an odd prime.at n=20A134854
• a(n) = 11*8^n+1.at n=7A199558
• Sorted list of prime factors of numbers of the form 3^(2^m) + 2^(2^m) with m >= 0.at n=17A294132
• Sorted list of prime factors of numbers of the form 11^(2^m) + 2^(2^m) with m >= 0.at n=13A294136
• Primes p such that the odd part of p - 1 is upper-bounded by the dyadic valuation of p - 1.at n=20A361180
• Primes p such that valuation(p-1,2) is a record.at n=14A370606
• Prime numbersat n=1452314